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Finding the Fourth Proportional to 7,934.56, 10,955.16 and 7,092.70

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Solution

The fourth proportional to 7,934.56, 10,955.16 and 7,092.70 is: 9,792.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.56 : 10,955.16 = 7,092.70 : x
  2. Step 2: Convert to fraction form
    7,934.56/10,955.16 = 7,092.70/x
  3. Step 3: Cross multiply
    7,934.56x = 10,955.16 × 7,092.70
  4. Step 4: Simplify right side
    7,934.56x = 77,701,663.33
  5. Step 5: Solve for x
    x = 77,701,663.33/7,934.56
  6. Step 6: Final answer
    x = 9,792.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.